The search for a Forefront TMG replacement (Part 5: Debian 7 + HAProxy)

Forefront TMG has now been discontinued and a replacement will have to be found sooner or later. There are now several manufacturers who are filling the gap left by Forefront TMG. I will test some promising solutions and publish a howto for each of them. Finally, there will be an article comparing the solutions with each other. Read more

The search for a Forefront TMG replacement (Part 3: Windows Server 2012 R2 + ARR 2.5)

Forefront TMG has now been discontinued and a replacement will have to be found sooner or later. There are now several manufacturers who are filling the gap left by Forefront TMG. I will test some promising solutions and publish a howto for each of them. Finally, there will be an article comparing the solutions with each other. Read more

The search for a Forefront TMG replacement (Part 2: Sophos UTM 9.1)

Forefront TMG has now been discontinued and a replacement will have to be found sooner or later. There are now several manufacturers who are filling the gap left by Forefront TMG. I will test some promising solutions and publish a howto for each of them. Finally, there will be an article comparing the solutions with each other. Read more

The search for a Forefront TMG replacement (Part 1: KEMP Edge Security Pack)

Forefront TMG has now been discontinued and a replacement will have to be found sooner or later. There are now several manufacturers who are filling the gap left by Forefront TMG. I will test some promising solutions and publish a howto for each of them. Finally, there will be an article comparing the solutions with each other. Read more

Exchange 2010: Incorrect index within a DAG (Event ID 123)

This error occurs from time to time, but can be rectified quickly. So if you see this error in the event log, you can quickly repair the index with the commands below Event ID: 123 Source: ExchangeStoreDB Info: A corrupted search catalog has been used for the copy of the Microsoft Exchange information store database on this server. In this ... Read more

Powershell: Search registry of clients for CAS array and report

I have already shown a tool here that can be used to change the server name in the Outlook profile. For example, from a single server to a CAS array. The tool can be easily executed via a login script, for example. However, the question then arises as to whether all clients have been "caught" and whether the server name has been changed correctly ... Read more

Optimization Kemp Loadbalancer for Exchange 2013 DAG

In this series of articles, I set up a highly available test environment with Kemp load balancers. As it was a test environment, I was more interested in the function than the optimum. However, there are a few things that can be tweaked to optimize the environment. Here are the most important ones: Switch on stateful failover and reduce HA timeouts: ... Read more

Exchange 2013: Test system with Database Availability Group (DAG) and Kemp load balancers (Part 5)

In the last part of this series of articles, we test the configured HA environment. The environment has not yet been optimized, but the results are quite impressive. Here you can see that Outlook 2013 no longer connects to the Exchange Server FQDN, but to a value consisting of "Mailbox GUID + @ + UPN Suffix" In the ... Read more

Exchange 2013: Test system with Database Availability Group (DAG) and Kemp load balancers (part 3)

Before we set up the DAG, we quickly configure the environment by first logging in to the ECP (https://exchangeserver/ecp) Under Message flow we add a new Accepted domain, in this example it is frankysweb.de Then we create a new send connector And now an e-mail address policy Now we can configure the DAG. ... Read more